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Measurement of the branching fractions of the B+ -> eta l(+)nu(l) and B+ -> eta ' l(+)nu(l) decays with signal-side only reconstruction in the full q(2) rangeopen access

Authors
Gebauer, U.Beleno, C.Frey, A.Adachi, IAdamczyk, K.Aihara, H.Al Said, S.Asner, D. M.Atmacan, H.Aushev, T.Ayad, R.Babu, VBahinipati, S.Behera, P.Belous, K.Bennett, J.Bessner, M.Bhardwaj, VBhuyan, B.Bilka, T.Biswal, J.Bobrov, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cao, L.Cervenkov, D.Chang, M-CChekelian, VChen, A.Cheon, B. G.Chilikin, K.Cho, H. E.Cho, K.Cho, S-JChoi, S-KChoi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Das, S.Dash, N.De Nardo, G.Di Capua, F.Dingfelder, J.Dolezal, Z.Dong, T., VEidelman, S.Epifanov, D.Ferber, T.Ferlewicz, D.Fulsom, B. G.Garg, R.Gaur, VGabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Golob, B.Gudkova, K.Hadjivasiliou, C.Halder, S.Hara, T.Hartbrich, O.Hayasaka, K.Hayashii, H.Hedges, M. T.Hou, W-SHsu, C-LIijima, T.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jia, S.Jin, Y.Joo, C. W.Joo, K. K.Kahn, J.Kaliyar, A. B.Kang, K. H.Karyan, G.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, C. H.Kim, D. Y.Kim, S. H.Kim, Y-KKinoshita, K.Kodys, P.Konno, T.Korobov, A.Korpar, S.Kovalenko, E.Krizan, P.Kroeger, R.Krokovny, P.Kuhr, T.Kumar, M.Kumar, R.Kumara, K.Kuzmin, A.Kwon, Y-JLalwani, K.Lange, J. S.Lee, I. S.Lee, S. C.Lewis, P.Li, Y. B.Li Gioi, L.Libby, J.Lieret, K.Liventsev, D.MacQueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Metzner, F.Miyabayashi, K.Mizuk, R.Mohanty, G. B.Mrvar, M.Mussa, R.Nakao, M.Natkaniec, Z.Natochii, A.Nayak, L.Nayak, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, S.Ono, H.Onuki, Y.Oskin, P.Pakhlov, P.Pakhlova, G.Pardi, S.Park, H.Park, S-HPatra, S.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Podobnik, T.Prencipe, E.Prim, M. T.Purohit, M., VRoehrken, M.Rostomyan, A.Rout, N.Russo, G.Sahoo, D.Sandilya, S.Sangal, A.Santelj, L.Sanuki, T.Savinov, VSchnell, G.Schueler, J.Schwanda, C.Seino, Y.Senyo, K.Sevior, M. E.Shapkin, M.Sharma, C.Shiu, J-GShwartz, B.Simon, F.Solovieva, E.Stanic, S.Staric, M.Stottler, Z. S.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tenchini, F.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Van Tonder, R.Varner, G.Varvell, K. E.Vossen, A.Waheed, E.Wang, C. H.Wang, M-ZWang, P.Wang, X. L.Watanuki, S.Wiechczynski, J.Won, E.Xu, X.Yabsley, B. D.Yan, W.Yang, S. B.Ye, H.Yin, J. H.Yuan, C. Z.Zhang, Z. P.Zhilich, VZhukova, V
Issue Date
Aug-2022
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.106, no.3
Journal Title
PHYSICAL REVIEW D
Volume
106
Number
3
URI
http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/43358
DOI
10.1103/PhysRevD.106.032013
ISSN
2470-0010
Abstract
The branching fractions of the decays B+ -> eta l(+)nu(l) and B+ -> eta'l(+)nu(l) are measured, where l is either an electron or a muon, using a data sample of 711 fb(-1) containing 772 x 10(6)B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. To reduce the dependence of the result on the form factor model, the measurement is performed over the entire q(2) range. The resulting branching fractions are B(B+ -> eta l(+)nu(l)) = (2.83 +/- 0.55((stat.)) +/- 0.34((syst.))) x 10(-5) and B(B+ -> eta'l(+)nu(l)) = (2.79 +/- 1.29((stat.)) +/- 0.30((syst.))) x 10(-5).
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College of Natural Sciences (Department of Physics)
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